Wanted a deed to embody a title (7)
I believe the answer is:
desired
'wanted' is the definition.
('desire' can be a synonym of 'want')
'a deed to embody a title' is the wordplay.
'to embody' means one lot of letters goes inside another.
'a title' becomes 'sir' (respectful address for a man).
'deed' placed around 'sir' is 'DESIRED'.
(Other definitions for desired that I've seen before include "Had aspired to" , "requested" , "Wanted strongly" , "Lusted-after" , "much wished for" .)